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Old 03-23-2017, 05:31 PM
gitrdun gitrdun is offline
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Question Question: .224 Sierra Matchkings

Has anyone shot and compared the standard Sierra .224 cal - 69gr Matchkings and the new tipped 69gr Matchkings? The tipped Matchkings provide a higher BC. I've ordered a box of each and would like some results from anyone who's experimented and compared both at longer range such as 500 yards. Thanks in advance.
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Old 03-23-2017, 08:23 PM
elkhunter11 elkhunter11 is online now
 
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I have used both in my Tikka .223, and the TMK shoots slightly better in my rifle than the standard matchking. The only issue is that I can't seat the TMK to the lands with the standard magazine. However I have a Waters magazine that allows me to use a COL quite a bit longer, so I have no issues seating to the lands when using that magazine.

Below is a side by side comparison of the 69gr TMK and the 69gr Matchking.

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Old 03-24-2017, 07:43 AM
gitrdun gitrdun is offline
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Much appreciated elk. Thanks
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Old 03-24-2017, 07:16 PM
gitrdun gitrdun is offline
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I'm curious elk. I typically would seat a SMK 0.020" off lands with good concentricity. Did you get better results from seating to lands as opposed to a slight jump?
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Old 03-24-2017, 08:09 PM
elkhunter11 elkhunter11 is online now
 
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I settled on a .010" jump to the lands. Below is a five shot group at 100m.

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Old 03-24-2017, 08:16 PM
colroggal colroggal is offline
 
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You know it's a good group when people ask, where's the 5th?

Colin
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Old 03-24-2017, 08:33 PM
elkhunter11 elkhunter11 is online now
 
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Quote:
Originally Posted by colroggal View Post
You know it's a good group when people ask, where's the 5th?

Colin
The 5th was the single hole on the left. That group was fired on my very first outing with the rifle, and subsequent groups were also sub 1/2". That was with my first bullet/powder combination tested.
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Old 03-24-2017, 09:57 PM
Duramaximos Duramaximos is offline
 
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What is the ideal twist rate for the 69gr MK?
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Old 03-24-2017, 10:15 PM
elkhunter11 elkhunter11 is online now
 
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Quote:
Originally Posted by Duramaximos View Post
What is the ideal twist rate for the 69gr MK?
I have had good results with 1 in 8" and 1 in 9".
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Old 03-25-2017, 03:56 PM
gitrdun gitrdun is offline
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Quote:
Originally Posted by Duramaximos View Post
What is the ideal twist rate for the 69gr MK?
Mine is a Savage 12FVSS, heavy fluted barrel, 1:8" twist. It's in a Boyds Pro-Varmint stock, pillared and bedded.
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Old 04-02-2017, 06:39 PM
gitrdun gitrdun is offline
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Default Identical results.

Quote:
Originally Posted by elkhunter11 View Post
I settled on a .010" jump to the lands. Below is a five shot group at 100m.

I've picked up the 69gr. Sierra TMK's from Fly's Etc. in High River a couple of days ago. Proceeded with an identical load that I've used with the standard SMK's - that is 25.3 gr of Varget, BR4 primers, Lapua brass. I loaded them starting with a 0.020" jump to lands and incremental in 0.005" jump closer to lands (measured to the ogive, not the tip). My results were identical to yours elk. The 0.010" jump yielded 5 rounds touching. As I settled a bit closer to lands, the results improved. I'll shoot that same load and jump to lands at extended ranges up to 500 meters and see how it goes. But it is very promising. Your information was extremely comparable to my own results in spite of the fact that we shoot out of 2 very different firearms.
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Old 04-02-2017, 06:46 PM
elkhunter11 elkhunter11 is online now
 
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Quote:
Originally Posted by gitrdun View Post
I've picked up the 69gr. Sierra TMK's from Fly's Etc. in High River a couple of days ago. Proceeded with an identical load that I've used with the standard SMK's - that is 25.3 gr of Varget, BR4 primers, Lapua brass. I loaded them starting with a 0.020" jump to lands and incremental in 0.005" jump closer to lands (measured to the ogive, not the tip). My results were identical to yours elk. The 0.010" jump yielded 5 rounds touching. As I settled a bit closer to lands, the results improved. I'll shoot that same load and jump to lands at extended ranges up to 500 meters and see how it goes. But it is very promising. Your information was extremely comparable to my own results in spite of the fact that we shoot out of 2 very different firearms.
I am using CFE 223 with Lapua cases, and BR-4 primers, and my powder charge is .7gr from yous with Varget.
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Old 04-02-2017, 06:54 PM
gitrdun gitrdun is offline
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Quote:
Originally Posted by elkhunter11 View Post
I am using CFE 223 with Lapua cases, and BR-4 primers, and my powder charge is .7gr from yous with Varget.
CFE 223 is a powder that I haven't tried yet. I've had such good results from Varget in a variety of calibers, all the way down from .222, .223, 7mm-08, etc. that I've stocked up on 10 lbs of it back when I bought an 8 lb jug for $244.99. I think that I'm down to 7.5 lbs of it. It'll do me for a while before I entertain jumping ship. I do however understand that CFE 223 is great at reducing copper fouling, but I don't let my barrels get to such a bad stage.
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Old 04-02-2017, 07:13 PM
elkhunter11 elkhunter11 is online now
 
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Quote:
Originally Posted by gitrdun View Post
CFE 223 is a powder that I haven't tried yet. I've had such good results from Varget in a variety of calibers, all the way down from .222, .223, 7mm-08, etc. that I've stocked up on 10 lbs of it back when I bought an 8 lb jug for $244.99. I think that I'm down to 7.5 lbs of it. It'll do me for a while before I entertain jumping ship. I do however understand that CFE 223 is great at reducing copper fouling, but I don't let my barrels get to such a bad stage.
This is the first time that I tried CFE 223 , and I don't notice any copper fouling at all. I get about 2950fps out of the 69gr TMKs.
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Old 04-02-2017, 07:24 PM
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Quote:
Originally Posted by elkhunter11 View Post
This is the first time that I tried CFE 223 , and I don't notice any copper fouling at all. I get about 2950fps out of the 69gr TMKs.
I haven't chronoed the TMK's yet. But with the standard SMK's I was clocking 3014 fps. out of my barrel.
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